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Bi-Concave Glass Lens, 50 mm Diameter, 300 mm Focal Length
Diverges incident light for optical experiments and beam control.
Bi-Concave Glass Lens, 75 mm Diameter, 200 mm Focal Length
Polished glass diverging optic with ground edges.
Optics Experiment Set With Laser Ray Box
Introductory ray optics set with laser and optical elements.
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